VMware ESXi SCSI Sense Code Decoder

SCSI errors or warnings in ESXi are displayed with 6 status codes. This page converts these sense codes from ESXi Hosts to human readable status information. In the vmkernel.log system log file from an ESXi 5.x or 6.0 hosts, you see entries similar to the following. Enter the colored numbers to the form and press Submit:

Excellent Tool, if we can get some information about how communication happens from ESXi host to Storage from logs that would be great, what command ESXi sends to Storage first and then what commands will be running on ESXi host when I/O is happening would be great.

Do you have Logs that you want to understand? If yes, feel free to provide.
You do not see each SCSI command in the log. This would be way to much. There are physical appliances in the market that you can put between your server and the storage array to capture all traffic. But these appliances are very rare and require very deep protocol knowledge.

From the ESXi log you usually only see datastore heartbeat and failed commands.

I ignore all sense code messages by default but watch them when I know that there is an issue. It's usually specific to a single platform, so not generally speaking. When you have storage issues, the sense code might help you when looking for the root cause. When you have a storage issue (for example a disconnected datastore) you will be noticed anyway.